The medication of Ketotifen Fumarate is used in the treatment of the disorders related to itching and allergies of the pinkeye in patients. The working of this medication can be explained as a formulation that controls and regulates the natural substance called histamine in the body that is responsible for allergic reactions in the body. A prescription for this medicine must be obtained from the doctor to decide the appropriate dosage to be taken on regular basis. . Ketotifen Fumarate is available in the market in the form of a liquid to be instilled in the eyes as per the instructions mentioned in the prescription. There are some common side effects of this medicine like runny nose, dry eyes, pain in eyes, itching, blurred vision, sore throat and headache. However, these side effects will be eliminated permanently after few days of taking the medication on regular basis.